吉单631不同密度植株分蘗、产量及产量构成研究  

Studies on Different Tiller Density on Yield and Yield Components of Jidan 631

作　　者：方向前[1] 闫伟平[1] 吕端春[2] 于钟富 杜佃河[2] 刘志友[2] 王兆刚[2] 赵凤琴[2] 边少锋[1] 

机构地区：[1]吉林省农业科学院农业资源与环境研究所,长春130033 [2]桦甸市农业推广中心,吉林桦甸132400

出　　处：《东北农业科学》2017年第2期1-5,共5页Journal of Northeast Agricultural Sciences

基　　金：国家玉米丰粮工程子课题(LFGC14327;LFGC14328;LFGC14308);国家玉米产业技术体系(CARS-02-38);公益性行业科研专项课题(201303125-2);吉林省科技发展计划项目(2015GJLS006NY)

摘　　要：吉单631不同密度植株分蘖对产量及产量构成的影响试验,结果表明,玉米种植密度在2 000株/667 m^2、3 000株/667 m^2、4 000株/667 m^2、5 000株/667 m^2、6 000株/667 m^2时,去除分蘖或保留分蘖,对玉米产量无显著影响。种植密度4 000株/667 m^2时,去除分蘖、保留分蘖的产量最高。明确了吉单631在生产中保留分蘖,能达到省工省力,促进节本增效生产的目的。在生产中保留玉米分蘖,对提升该区域玉米高产高效生产能力具有促进作用。The study was carried out on the effects of different tiller density on yield and yield components of Jidan631, the results show that, removal of tiller or retained tiller had no significant effect on the yield of maize, whenthe planting density of 2000 plants/667 m^2, 3000 plants/667 m^2, 4000 plants/667 m^2, 5000 plants/667 m^2, 6000plants/667 m^2. The highest yield with removal of tiller or retained tiller was the planting density of 4000 plants/667m^2. Jidan 631 in the production keep tiller, could save labor and time, to promote the efficiency of the section pro-duction purposes. Keep tiller in production had promoting effect to enhance the production capacity of high yield inthe region.

关 键 词：玉米 密度 分蘖 产量 

分 类 号：S513[农业科学—作物学]